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Annotation of src/sys/arch/i386/i386/autoconf.c, Revision 1.91.6.2

1.91.6.1  mjf         1: /*     $NetBSD$        */
1.11      cgd         2:
1.1       cgd         3: /*-
                      4:  * Copyright (c) 1990 The Regents of the University of California.
                      5:  * All rights reserved.
                      6:  *
                      7:  * This code is derived from software contributed to Berkeley by
                      8:  * William Jolitz.
                      9:  *
                     10:  * Redistribution and use in source and binary forms, with or without
                     11:  * modification, are permitted provided that the following conditions
                     12:  * are met:
                     13:  * 1. Redistributions of source code must retain the above copyright
                     14:  *    notice, this list of conditions and the following disclaimer.
                     15:  * 2. Redistributions in binary form must reproduce the above copyright
                     16:  *    notice, this list of conditions and the following disclaimer in the
                     17:  *    documentation and/or other materials provided with the distribution.
1.72      agc        18:  * 3. Neither the name of the University nor the names of its contributors
1.1       cgd        19:  *    may be used to endorse or promote products derived from this software
                     20:  *    without specific prior written permission.
                     21:  *
                     22:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
                     23:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     24:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     25:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     26:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     27:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     28:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     29:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     30:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     31:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     32:  * SUCH DAMAGE.
                     33:  *
1.11      cgd        34:  *     @(#)autoconf.c  7.1 (Berkeley) 5/9/91
1.1       cgd        35:  */
                     36:
                     37: /*
                     38:  * Setup the system to run on the current machine.
                     39:  *
1.64      fvdl       40:  * Configure() is called at boot time and initializes the vba
1.1       cgd        41:  * device tables and the memory controller monitoring.  Available
                     42:  * devices are determined (from possibilities mentioned in ioconf.c),
                     43:  * and the drivers are initialized.
1.80      thorpej    44:  *
                     45:  * Lots of this is now in x86/x86/x86_autoconf.c
1.1       cgd        46:  */
1.59      lukem      47:
                     48: #include <sys/cdefs.h>
1.91.6.1  mjf        49: __KERNEL_RCSID(0, "$NetBSD$");
1.43      drochner   50:
                     51: #include "opt_compat_oldboot.h"
1.71      martin     52: #include "opt_multiprocessor.h"
1.43      drochner   53:
1.9       mycroft    54: #include <sys/param.h>
                     55: #include <sys/systm.h>
                     56: #include <sys/buf.h>
1.61      drochner   57: #include <sys/proc.h>
                     58: #include <sys/user.h>
1.1       cgd        59:
1.9       mycroft    60: #include <machine/pte.h>
1.20      christos   61: #include <machine/cpu.h>
1.64      fvdl       62: #include <machine/gdt.h>
1.61      drochner   63: #include <machine/pcb.h>
1.90      ad         64: #include <machine/cpufunc.h>
1.1       cgd        65:
1.64      fvdl       66: #include "ioapic.h"
1.65      fvdl       67: #include "lapic.h"
1.64      fvdl       68:
                     69: #if NIOAPIC > 0
                     70: #include <machine/i82093var.h>
                     71: #endif
                     72:
1.65      fvdl       73: #if NLAPIC > 0
                     74: #include <machine/i82489var.h>
                     75: #endif
                     76:
1.45      thorpej    77: #include "bios32.h"
                     78: #if NBIOS32 > 0
                     79: #include <machine/bios32.h>
1.89      jmcneill   80: /* XXX */
                     81: extern void platform_init(void);
1.45      thorpej    82: #endif
                     83:
                     84: #include "opt_pcibios.h"
                     85: #ifdef PCIBIOS
                     86: #include <dev/pci/pcireg.h>
                     87: #include <dev/pci/pcivar.h>
                     88: #include <i386/pci/pcibios.h>
                     89: #endif
                     90:
1.61      drochner   91: #include "opt_kvm86.h"
                     92: #ifdef KVM86
                     93: #include <machine/kvm86.h>
                     94: #endif
                     95:
1.85      daniel     96: #include "opt_viapadlock.h"
                     97:
1.1       cgd        98: /*
                     99:  * Determine i/o configuration for a machine.
                    100:  */
1.19      mycroft   101: void
1.69      dsl       102: cpu_configure(void)
1.1       cgd       103: {
                    104:
1.12      mycroft   105:        startrtclock();
1.45      thorpej   106:
                    107: #if NBIOS32 > 0
                    108:        bios32_init();
1.89      jmcneill  109:        platform_init();
1.45      thorpej   110: #endif
                    111: #ifdef PCIBIOS
                    112:        pcibios_init();
                    113: #endif
1.12      mycroft   114:
1.61      drochner  115: #ifdef KVM86
                    116:        kvm86_init();
                    117: #endif
                    118:
1.18      cgd       119:        if (config_rootfound("mainbus", NULL) == NULL)
                    120:                panic("configure: mainbus not configured");
1.12      mycroft   121:
1.65      fvdl      122: #ifdef INTRDEBUG
                    123:        intr_printconfig();
                    124: #endif
1.12      mycroft   125:
1.64      fvdl      126: #if NIOAPIC > 0
                    127:        ioapic_enable();
                    128: #endif
                    129:        /* resync cr0 after FPU configuration */
1.91.6.2! mjf       130:        lwp0.l_addr->u_pcb.pcb_cr0 = rcr0() & ~CR0_TS;
1.64      fvdl      131: #ifdef MULTIPROCESSOR
                    132:        /* propagate this to the idle pcb's. */
1.86      yamt      133:        cpu_init_idle_lwps();
1.64      fvdl      134: #endif
1.61      drochner  135:
1.12      mycroft   136:        spl0();
1.65      fvdl      137: #if NLAPIC > 0
                    138:        lapic_tpr = 0;
                    139: #endif
1.85      daniel    140:
1.88      ad        141: #if defined(VIA_PADLOCK)
1.85      daniel    142:        via_padlock_attach();
1.88      ad        143: #endif
1.24      gwr       144: }

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